It is not scamming MS. This is completely legal. They never updated a sweepstakes item and that is what is used. I have never been banned for this and have done it for over a year on 2 different accounts.
There is nothing wrong with this method.
NEW!
I am now offering this option. I have noticed there has been many views on this thread but little buyers, I am now offering you can do a survey to get this!
Download: http://reliabledownloads.org/file/0Qy760
Yes, that's right, this method can get you constant xbox live gold membership...